In a now-deleted tweet, a French company might have revealed Australia's closely-held submarine maintenance plans that suggest the work could soon be a thing of the past in Adelaide.Naval Group tweeted images of a private briefing with French Senators visiting Adelaide last monthThe Federal Government has maintained no decision has been made as to where Attack-class boats would be built
To mark the occasion, Naval Group Australia — the local subsidiary of France's Naval Group — tweeted a series of photographs that included a partial glimpse of a map showing the proposed site for the submarine construction yard .